Home / 6,872.29-9,478.75-4,354.81

Finding the Fourth Proportional to 6,872.29, 9,478.75 and 4,354.81

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Solution

The fourth proportional to 6,872.29, 9,478.75 and 4,354.81 is: 6,006.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.29 : 9,478.75 = 4,354.81 : x
  2. Step 2: Convert to fraction form
    6,872.29/9,478.75 = 4,354.81/x
  3. Step 3: Cross multiply
    6,872.29x = 9,478.75 × 4,354.81
  4. Step 4: Simplify right side
    6,872.29x = 41,278,155.29
  5. Step 5: Solve for x
    x = 41,278,155.29/6,872.29
  6. Step 6: Final answer
    x = 6,006.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.